Springboot: show registered mappings

Question

I have created simple spring boot application using spring initilzr. POM is:

<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.3.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>

<properties>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

then I add simple controller which returns string 'hello'. Endpoint works and I am happy but I would like to have all registered mappings in log during starting application. How to achieve that?

At startup, Spring Boot will list all available mappings. Look for entries like "INFO 32375 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping" in your startup logs — sechanakira, Feb 19 '19 at 13:18
Unfortunatelly, there is no RequestMappingHandlerMapping log lines — user109447, Feb 19 '19 at 13:37
Have you looked in this answer: https://stackoverflow.com/questions/43541080/how-to-get-all-endpoints-list-after-startup-spring-boot ? And also Spring doc for `mappings` here: https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-endpoints.html — Antot, Feb 19 '19 at 13:43
Possible duplicate of [How to Get All Endpoints List After Startup, Spring Boot](https://stackoverflow.com/questions/43541080/how-to-get-all-endpoints-list-after-startup-spring-boot) — Antot, Feb 19 '19 at 13:43

score 1 · Answer 1 · answered Jun 17 '20 at 18:46

One way could be to use Spring Boot Actuator to monitor the application mappings.
You will then be able to monitor the data either with JMX or HTTP.

How to :

Add Spring Boot Actuator (see https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-features.html#production-ready-enabling)

Add this dependency :

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>

Expose the mappings (see https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-features.html#production-ready-endpoints-exposing-endpoints)

2a. For HTTP :

Add this line to application.properties :

management.endpoints.web.exposure.include=info, health, mappings

Then check this endpoint : http://localhost:8080/actuator/mappings (JSON data)

2b. For JMX :

Add this line to application.properties :

spring.jmx.enabled=true

Then check the MBeans prefixed by org.springframework.boot, with VisualVM for example.

Springboot: show registered mappings

1 Answers1